Home / 12,086.55-16,679.18-6,708.68

Finding the Fourth Proportional to 12,086.55, 16,679.18 and 6,708.68

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Solution

The fourth proportional to 12,086.55, 16,679.18 and 6,708.68 is: 9,257.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,086.55 : 16,679.18 = 6,708.68 : x
  2. Step 2: Convert to fraction form
    12,086.55/16,679.18 = 6,708.68/x
  3. Step 3: Cross multiply
    12,086.55x = 16,679.18 × 6,708.68
  4. Step 4: Simplify right side
    12,086.55x = 111,895,214.66
  5. Step 5: Solve for x
    x = 111,895,214.66/12,086.55
  6. Step 6: Final answer
    x = 9,257.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.